[jira] [Commented] (HDFS-12379) NameNode getListing should use FileStatus instead of HdfsFileStatus

["Andrew Wang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-12379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16149873#comment-16149873 ] 

Andrew Wang commented on HDFS-12379:
------------------------------------

I'm -1 on any change that breaks wire compatibility. Is that what is being proposed here?

> NameNode getListing should use FileStatus instead of HdfsFileStatus
> -------------------------------------------------------------------
>
>                 Key: HDFS-12379
>                 URL: https://issues.apache.org/jira/browse/HDFS-12379
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Zhe Zhang
>
> The public {{listStatus}} APIs in {{FileSystem}} and {{DistributedFileSystem}} expose {{FileStatus}} instead of {{HdfsFileStatus}}. Therefore it is a waste to create the more expensive {{HdfsFileStatus}} objects on NameNode.
> It should be a simple change similar to HDFS-11641. Marking incompatible because wire protocol is incompatible. Not sure what downstream apps are affected by this incompatibility. Maybe those directly using curl, or writing their own HDFS client.



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